ADU Regulations in Menifee, California (2026)

Regulations at a glance

Local rules & notes

Illegal Right-of-Way Dedication: The city attempted to require applicants to grant an irrevocable offer of dedication for additional right-of-way as a condition for an ADU permit, which HCD ruled as an unconstitutional taking. Subjective Design Standards: The ordinance required ADUs to possess specific traits like 'window characteristics' and 'decorative treatments,' which are subjective and prohibited under state law. Unlawful Stairway Restriction: The city tried to prohibit outside stairways for second-story ADUs on any elevation facing a public street, which is an unauthorized development standard.

For the official ordinance and latest updates, check your city or county planning department.

Frequently asked questions about ADU regulations in Menifee

• What is the maximum ADU size in Menifee, California?

  In Menifee, the maximum ADU size is typically 1200 square feet, depending on whether the unit is attached or detached. California state law allows up to 1,200 sq ft for detached ADUs and 800 sq ft for attached in many jurisdictions; Menifee may follow state defaults or have local limits. Verify with Menifee planning for your specific lot.

• What are the setback requirements for ADUs in Menifee?

  In Menifee, typical setback requirements are 4 feet from the side property line and 4 feet from the rear. These may be reduced to 4 feet under California Government Code § 65852.2 where applicable. Check with Menifee planning for overlay zones or design standards that could affect your site.

• What is the maximum height for an ADU in Menifee?

  In Menifee, the maximum height for an ADU is generally 16 feet. State law often allows up to 16 feet for detached ADUs and up to 25 feet when within 4 feet of the property line in some cases. Confirm with Menifee or county planning for your zone.

• Is ADU approval ministerial in Menifee?

  In Menifee, ADU approval is typically Ministerial (by-right) per Gov Code §65852.2. Ministerial (by-right) review means the city must approve qualifying applications without discretionary review, per California Gov Code § 65852.2. Your project must still meet objective standards; Menifee planning can confirm the exact process.

• Are there parking requirements for ADUs in Menifee?

  In Menifee, parking for ADUs is generally false. California law often waives parking for ADUs within a half-mile of transit or in certain historic districts. Check with Menifee planning for your address.